html,
body {
  position: relative;
  height: 100%;
}

body {
  background: white;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  color: #000;
  margin: 0;
  padding: 0;
  padding-top: 70px;
}

.top{
  display: flex;
  align-items: center;
  background-color: #f8f9fa;
  padding: 10px 20px;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}
.top img{
  height: 50px;
  margin-right: 20px;
}
.Topnavbar{
  list-style-type: none;
  margin: 0;
  padding: 0;
  display: flex;
}
.Topnavbar li{
  margin: 0 20px;
}
.Topnavbar a{
  font-size: 20px;
  text-decoration: none;
  color: #333;
  padding: 5px 10px;
  border-radius: 5px;
  transition: background-color 0.5s ease;
}
.Topnavbar a:hover{
  background-color: #e0e0e0;
}

.main{
  display: flex;
  align-items: center;
  padding: 10px;
}

.left{
  flex: 7;
  text-align: left;
  margin-left: 20px;
  margin-right: 10px;
  font-size: 24px;
  font-weight: 700;
  color: #333;
  font-family: 华文细黑;
  padding: 0 0 0 40px;
}

.right{
  flex: 3;
  text-align: right;
  margin-right: 60px;
  font-size: 88px;
  font-weight: bold;
  color: #333;
  font-family: 黑体;
}

.swiper {
  margin-bottom: 20px;
  width: 100%;
  padding-top: 20px;
  padding-bottom: 50px;
  background-color: #fff;
  box-shadow:  0px 4px 8px rgba(0, 0, 0, 0.1);
}

.swiper-slide {
  background-position: center;
  background-size: cover;
  width: 300px;
  height: 300px;
}

.swiper-slide img {
  display: block;
  width: 100%;
  border-radius: 5px;
}

.title{
  font-size: 36px;
  font-weight: bold;
  font-family: 黑体;
  color: #333;
  margin-left: 40px;
  padding: 20px;
  text-align: left;
  
}

.bottom{
  display: flex;
  flex-direction: row;
  align-items: self-start;
  margin: 0 40px;
  padding: 20px;
}

.up{
  flex: 5;
  margin-right: 40px;
}

.down{
  flex: 5;
  margin-right: 20px;
}

.up a, .down a{
  text-decoration: none;
}

.up a img{
  width: 750px;
  height: auto;
}

.down a img{
  width: 470px;
  height: auto;
}

.up a h2{
  font-size: 32px;
  color: #333;
  font-family: 等线;
  font-weight: 700;
  margin-top: 20px;
  margin-bottom: 0;
}

.down a h2{
  font-size: 32px;
  color: #333;
  font-family: 等线;
  font-weight: 700;
  margin-top: 20px;
  margin-bottom: 0;
  padding: 0 90px 0 0;

}

.up a p{
  color: #aaa;
  font-size: 18px;
  font-family: 等线;
  font-weight: 700;
  margin-top: 20px;
  margin-bottom: 0;
}

.up a img:hover,.down a img:hover{
  transform: translateY(-20px);
  transition: all 0.5s ease;
  box-shadow:  0px 4px 8px rgba(0, 0, 0, 0.5);
}

.under{
  margin: 0;
  background-color: #000;
  color: #fff;
}
.Bottonnavbar {
  display: flex;
  justify-content: center;
  padding: 20px 150px;
  border-bottom: 1px solid #444;
  gap: 20px;
}
.section {
  padding: 0 20px;
  display: flex;
  gap: 10px;
  flex-direction: column;
}
.section a {
  text-decoration: none;
  margin: 0 10px;
  padding: 5px 10px;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}
.section a:hover {
  background-color: #444;
}
.first-row{ 
  font-weight: bold;
  color: #fff;
  font-size: 18px;
}
.rows{
  color: #aaa;
  font-size: 0.9em;
}
.footer {
  display: flex;
  justify-content: center;
  padding: 10px;
  background-color: #111;
  color: #aaa;
  font-size: 0.8em;
}
.footer a {
  color: #aaa;
  text-decoration: none;
  margin: 0 20px;
}
.logo {
    display: flex;
    align-items: left;
}
.logo img {
  height: 100px;
  margin-right: 10px;
}
.end{
  display: flex;
  justify-content: center;
  margin-top: 10px;
}
.copyright{
  margin: 0;
  color: #bbb;
  font-size: 0.7em;
  display: flex;
  justify-content: center;
  margin-bottom: 20px;

}


@media screen and  (max-width: 768px) {
  .top{
    padding: 5px;
  }
  .top img{
    height: 40px;
    margin-right: 10px;
  }
  .Topnavbar{
     width: 100%;
  }
  .Topnavbar li{
    margin: 0 5px;
  }
  .Topnavbar a{
    font-size: 10px;
    border-radius: 2px;
    padding: 0 5px;
  }
  .left{
    margin-left: 10px;
    margin-right: 0;
    font-size: 10px;
    padding: 0 0 0 10px;
  }
  .right{
    margin-right: 20px;
    font-size: 24px;
  }
  .title{
    font-size: 24px;
    margin-left: 10px;
    padding: 5px;
  
  }
  .bottom{
    width: 100%;
    margin: 0 5px;
    padding: 5px;
  }
  .up,.down{
    margin-right: 20px;
  }
  .up a h2{
    font-size: 14px;
    margin-top: 5px;
    margin-bottom: 0;
  }


  .down a h2{
    font-size: 14px;
    margin-top: 5px;
    padding: 0 10px 0 0;
    margin-bottom: 0;

  }
    
  .up a p{
    font-size: 8px;
    margin-top: 8px;
    margin-bottom: 5px;
  }
  .up a img{
    width: 240px;
  }
  .down a img{
    width: 185px;
  }
  .up a img:hover,.down a img:hover{
    transform: translateY(-6px);
  }
 
  .Bottonnavbar {
    padding: 10px;
    justify-content: center;
    gap: 10px;
  }
  .section {
    padding: 5px;
    gap: 5px;
    width: 100%;
  }
  .section a{
    margin: 0;
    padding: 0;
    border-radius: 1px;
  }
  .first-row{
    font-weight: 500;
    font-size: 10px;
  }
  .rows{
    font-size: 8px;
  }
  .footer {
    flex-direction: row;
    font-size: 9px;
  }
  .footer a{
    color: #fff;
    font-weight: 500;
    margin: 0 10px;
  }
  .logo img {
    height: 50px;
  }
  .copyright {
    color: #fff;
    font-size: 8px;
    margin-bottom: 10px;
  }
    
}
